public string RegexPatternList(FrequentlyUsedPattern frequentlyUsedPattern)
{
switch (frequentlyUsedPattern)
{
case FrequentlyUsedPattern.IsDigit:
return(@"^[0-9]*$");
break;
case FrequentlyUsedPattern.IsMutiDigit:
return(@"^\d{n}$");
break;
case FrequentlyUsedPattern.AtLeastMutiDigit:
return(@"^\d{n,}$");
break;
case FrequentlyUsedPattern.IsExtentNumber:
return(@"^\d{m,n}$");
break;
case FrequentlyUsedPattern.QQNumber:
return(@"[1-9][0-9]{4,}");
break;
case FrequentlyUsedPattern.ImageSrc:
return(@"<img\b[^<>]*?\bsrc[\s\t\r\n]*=[\s\t\r\n]*[""']?[\s\t\r\n]*(?<imgUrl>[^\s\t\r\n""'<>]*)[^<>]*?/?[\s\t\r\n]*>");
break;
case FrequentlyUsedPattern.AlicdnStoreLogo:
return(@"//logo.taobao.com/shop-logo/");
break;
case FrequentlyUsedPattern.AlicdnBaoUploaded:
return(@"//img.alicdn.com/bao/uploaded/");
break;
case FrequentlyUsedPattern.AlicdnImgextra:
return(@"https://img.alicdn.com/imgextra/");
break;
default:
throw new ArgumentNullException();
break;
}
}
/// <summary>
/// 在指定的输入字符串内，使用指定的替换字符串替换与某个指定正则表达式模式匹配的所有的字符串
/// </summary>
/// <param name="replacement">在指定的输入字符串内，使用指定的替换字符串替换与某个指定正则表达式模式匹配的所有的字符串</param>
/// <param name="FrequentlyUsedPattern">使用FrequentlyUsedPatten常用正则表达式枚举</param>
/// <returns></returns>
public string RegexReplace(string replacement, FrequentlyUsedPattern frequentlyUsedPattern)
{
return(RegexReplace(MatchText, replacement, RegexPatternList(frequentlyUsedPattern)));
}
/// <summary>
/// 使用正则表达式批量匹配语句
/// 用法：
/// var regexOS = RegexOS.ExecuteWebsiteCrawler();
/// foreach (var item in regexOS.RegexMatches(matchStr,matchPattern,startAt))
/// {
/// }
/// </summary>
/// <param name="input">要匹配的文本</param>
/// <param name="matchPattern">被匹配的正则表达式</param>
/// <returns>
/// </returns>
public MatchCollection RegexMatches(string input, FrequentlyUsedPattern frequentlyUsedPattern)
{
return(RegexMatches(input, RegexPatternList(frequentlyUsedPattern)));
}
/// <summary>
/// 使用正则表达式批量匹配语句
/// 用法：
/// var regexOS = RegexOS.ExecuteWebsiteCrawler();
/// foreach (var item in regexOS.RegexMatches(matchStr,matchPattern,startAt))
/// {
/// }
/// </summary>
/// <param name="input">要匹配的文本</param>
/// <param name="matchPattern">被匹配的正则表达式</param>
/// <returns>
/// </returns>
public MatchCollection RegexMatches(FrequentlyUsedPattern frequentlyUsedPattern)
{
return(RegexMatches(MatchText, RegexPatternList(frequentlyUsedPattern)));
}
/// <summary>
/// 验证输入字符串是否与模式字符串匹配，匹配返回true
/// </summary>
/// <param name="input">输入字符串</param>
/// <param name="pattern">模式字符串</param>
public bool IsMatch(string input, FrequentlyUsedPattern frequentlyUsedPattern)
{
return(IsMatch(input, RegexPatternList(frequentlyUsedPattern), RegexOptions.IgnoreCase));
}
/// <summary>
/// 验证输入字符串是否与模式字符串匹配，匹配返回true
/// </summary>
/// <param name="pattern">模式字符串</param>
public bool IsMatch(FrequentlyUsedPattern frequentlyUsedPattern)
{
return(IsMatch(MatchText, RegexPatternList(frequentlyUsedPattern), RegexOptions.IgnoreCase));
}
